body{
    margin: 0;
    background-image: url(../img/21.jpg);
    background-repeat: no-repeat;
    -webkit-background-size: 100% 100%;
    background-size: 100% 100%;
}
main{
    background-color: white;
    opacity: 0.5    ;
    width: 90%;
    margin: 0 auto;
    border-radius: 10px;
    box-shadow: 0 0 20px white;
}
a{
    text-decoration: none;
    color: indigo;
    font-size: 1.2em;
}
main>div{
    margin-bottom: 10px;
    margin-left: 20px;
    /*display: inline-block;*/
}
h1{
    color: lawngreen;
    margin-left: 50px;
    margin-top: 10px;
}

